Siphon for flushing tanks



(No Model.)

H. T.BU$H. SIPHON FOR FLUSHING TANKS.

No. 458,044. Patented Aug. 18, 1891.

Hmeooeo UNITED STATES PATENT Orrtcn.

HIRAM T. BUSH, OF DETROIT, MICHIGAN, ASSIGNOR TO COPE BROTHERS, OFMICHIGAN.

SIPHON FOR FLUSHING TANKS. I

SPECIFICATION forming part of Letters Patent No. 458,044, dated August18, 1891.

Serial No. 379,835. (No model.)

valve-stem Q the valve C falls to its seat and To all whom it mayconcern.-

Be it known that I, HIRAM T. BUSH, of Detroit, in the county of Wayneand State of Michigan, have invented a new and useful Improvement inSiphons for Flushing Tanks, of which the following is a specification.

My invention consists in an improvement in siphons for flushing tanks,hereinafter fully described and claimed.

Figure 1 is a vertical elevation partly in section; and Fig. 2 is aplanview, the tank itself being omitted in both cases.

E represents an outlet-pipe leading through the bottom of the tank, andB and A represent, respectively, the up and down legs of a siphon, thedown leg Abeing a continuation of the pipe E.

D represents an ofiset in pipe E, the upper end of which is closed by avalve 0, adapted to rest on the valve-seat by gravity and provided witha stem Q, in the upper end of which is formed a ring for the attachmentof a chain by which the valve may be raised.

K represents a lever pivoted at M to the down leg A of the siphon, asuitable lug or lugs being formed thereon for this purpose, and itsshort arm L extends into a slot N in valve-stem Q, the parts being soarranged that pressure applied to the long arm R of lever K will raisethe short arm L, and thereby unseat valve 0.

F, J, and I represent an inlet-supply valve, which may be of any knownform of floatvalve, being governed by a float G, connected with thevalve by a lever H. The lever H of the float-valve extends in a pathwhich intersects the long arm R of lever K, and for the purpose ofpreventing disengagement of these parts by lateral motion of the float Iprefer to turn up the end of the long arm R, as shown at P, to guide thelever H of the float-valve.

T represents a lug on the top of valve 0, adapted to strike against theunder side S of lever K, and thus limit the upward motion of said valve.

The operation of my invention is as follows: On raising valve-stem Q thevalve 0 is unseated, and water from the tank rushes in through offset Dinto pipe E. On releasing the water in pipe E establishes the siphon upthrough leg B and down through leg A. The action of the siphon draws thewater out of the tank, and this permits float Gto descend from theposition shown in dotted lines in Fig. 1, which it occupies when thewater stands at its highest level in the tank until it reaches theposition shown in full lines in Fig. 1, at which point the lever H ispressing on the long arm of lever K. Up to this point the valve 0 isstill seated; but as the water continues to fall in the tank the weightof lever H and float G presses down the long arm R of lever K andunseats valve 0, thus permitting air to enter offset D and break thesiphon. As 'soon as this occurs the siphon ceases to act, water rises inthe tank and raises float G, valve 0 again comes to its seat, and thetank fills to its normal level.

\Vhat I claim as my invention, and desire to secure by Letters Patent,is

1. The combination, with a siphon having its down leg provided with anopening below the normal water-level, of a valve controlling theopening, means for unseating said valve by hand, an inlet-valve, afloat-lever connected with the inlet-valve, and a lever having one armarranged in the path of and depressed by the float-lever and the otherarm connected with and serving to temporarily unseat the valve whichcontrols the opening in the down leg of thesiphon for breaking thesiphon, substantially as described.

2. In combination with a float-valve controlling the supply of water toa tank, a siphon having an opening therein below the normal water-level,a valve controlling said opening, and a lever having one end connectedwith said valve and having its other armin the descending path of thefloat-valve lever and depressed by the descent of the float-lever totemporarily unseat the valve and thereby break the siphon, substantiallyas shown and described.

HIRAM T. BUSH.

V Witnesses:

HENRY B. LOTHROP, GERTRUDE H. ANDERSON.

